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活性氢 huóxìngqīng
met. active hydrogen
oil reactive hydrogen
活性〔泼〕氢
phys.chem. reactive hydrogen
活性 氢: 17 phrases in 11 subjects
Agriculture1
Automobiles1
Chemistry1
Earth sciences1
Ecology1
Electronics2
Oil / petroleum3
Oil processing plants1
Polymers1
Technology1
Water resources4